The SUV that officials say Jean Soriano drove sits overturned after it was involved in an accident that killed five Southern California family members and injured two others. Soriano, 18, was later arrested on suspicion of driving under the influence.

This photo provided by the Nevada Highway Patrol shows Jean Soriano, 18, who was booked into the Clark County Detention Center after he was treated and released at University Medical Center in Las Vegas. Soriano has been arrested on suspicion of driving under the influence in a southern Nevada crash that killed five members of a California family and injured two others.

The SUV that officials say Jean Soriano drove sits overturned after it was involved in an accident that killed five Southern California family members and injured two others. Soriano, 18, was later arrested on suspicion of driving under the influence.

The SUV that officials say Jean Soriano drove sits overturned after it was involved in an accident that killed five Southern California family members and injured two others. Soriano, 18, was later arrested on suspicion of driving under the influence.

A teenager suspected of being drunk and causing a crash that killed five people outside Las Vegas had escaped from an Orange County detention facility a month earlier, according to emails from the Probation Department.

Jean Ervin Soriano, 18, who is in custody in Clark County, Nev., is accused of crashing into the back of a van on I-15 on March 30, killing five members of a Los Angeles family.

Orange County Probation Department officials notified Interim County CEO Bob Franz in an email Monday that the 18-year-old suspect “was a fugitive from the Youth Guidance Center, after his escape from that facility on March 1, 2013.”

The email, reviewed by the Orange County Register, was sent from the department’s Division Director and Public Information Officer Ed Harrison.

Now one of the county’s supervisors said he was “outraged” to learn county officials were notified of the escape more than 30 days after it occurred. County Supervisor Todd Spitzer said he is also asking the Office of Independent Review to examine the Probation Department’s policies and procedures for escape.

“The answers were very vague and elusive and troubling,” Spitzer said Thursday morning. “I’m trying to reach the Office of Independent Review and get them on this right away.”

Soriano is scheduled to be arraigned in Clark County on April 10.

Bryan Prieto, chief deputy probation officer for the department’s Operation Support Bureau, said he could not confirm whether Soriano had escaped from the agency’s Youth Guidance Center.

“I can’t confirm one way or another,” he said.

Prieto said probation officials were limited under law to provide information regarding escapes, he said.

That’s one of the issues Spitzer said he wanted to address, including the agency’s protocol for notifying county agencies and public officials; the investigation of the escape; and what methods were used to find the escapee.

The Youth Guidance Center is one of four juvenile-detention facilities operated by the county’s probation agency. The facility, in Santa Ana, tends to teenagers with substance-abuse problems.

The center holds about 80 beds for detainees from 13 to 20 years old; it offers counselors and programs to address substance abuse.

This is the second time probation officials have come under criticism over security issues at one of their detention facilities. Six employees were fired and another seven were suspended last year after officials found several security lapses in the Santa Ana Juvenile Hall.

That investigation was launched after a male and a female detainee were found having sex in one of the facility’s high-security units.

Probation officials shortly thereafter changed a policy of housing males and females in the same housing units.

The Office of Internal Review became involved in the internal investigation, where officials found routine checks were repeatedly skipped in the high-security unit. Officials also found electronic logs “had been filled out inaccurately to cover for this lack of diligence.”

Soriano was booked on suspicion of driving under the influence, killing five people and injuring two.

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